I have setup a RPi 3B+ as access point using this tutorial:
I have a few dozens of RPi Zero's that connect to the AP. The problem is that, when the AP has 15+ clients, it becomes unresponsive. New clients are not able to join.
I am not sure if I have to change anything in the configurations to make it work. The current setup is identical to the tutorial above. Or is it simply a hardware limitation that has no solution?